Friction draft-rigging.



W. BLACKMUML.

FRiCTION DRAFT RIGGING.

APPLICATION mu) JUNE 6.1914.

Patented July 25, 1916.

2 SHEETS-SHEET I.

W.- BLACKMORE.

FRICTION DRAFT RIGGING.

APPLICATION FILED JUNE 6. 1914.

1,192,266. Patented July 25, 1916.

2 SHEETS-SHEET Z.

ITED mma PATENE.@FFECE.

.WiLLIAM BLACKMORE. '01? CLEVELAND. QHI fig fil Griufi TO THE NATIONAL MALLE- ABLE CASTINGS COMPANY, OF OHIO, A CORPORATION OF OHIO.

mm-Hm? July mins.

A plication filed June 6, 19M. Serial H0. 343.42%.

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tinn .mmuhur. and musis'th in tho 0hni'inatjm) nf thv. usual basing-am] an a nm'ol ljdzgxa $12M! in uh t. again-(L flw war draft. sill against thv. front draft s11! stops 4'. Th0- cmnpn-sshm spring 8 surrmnuls the central friction nnm hvs' "3 and is ha h! in pusitifii" tin-why, and it is sx-ah-(l M. its run: 2: against the forward hm: 1U uf ihv phxtc m hhsv The (-vnh al frivflon nnauhcr 2 hu m-ntz'ill Em-gihuhnul rvwns 11. (men on its human! s z-zn'. zuhlg tzwi fur '\'=;!Unn of :1. l' h:1. v spring 12. Thu ra'hsaxv spring 13 funds at its roar mu: against the phi; INN- ithe (nut-ml Fr u'tinn im-mhvr I, and :n Us funny-n1! e-nd uguinsithe. Hunt {01- lmwr 9.

, refoa cnco being hh'h hem-5 againi tha-nase-iof the fric- .t1on uwmhcp; The from; fpllower..-9 is so :n-rzyngvd that ii will striuce theiforwzu-d end Hhf the central frn-tzonnumber flat the 0ml of the travel of vhe-devicag'andjust be After th 1301.39 W5. Ina vgdging engagement {mm-x- Uu: ,fmemost figggand jts set of gainsL- springs S and 12. the shoes '6 and the wedges support-Eng engagement-with the. foremost wodgv, \vhhh have snawn as being intgml in tin: fmnfi fnizewar, iileiri cbional and swing part-Q of the, (is-"3 3a are-self-sup' porting anti the 1m casing is thus unnecessary. The posi .nn 0? the release spring 12 is m aspe-riai :ua antage since iC-enahles the rah-using tn he Cone hv singxo spring an? in Hue frivtiun elements. v

Fig. 56 Bi brat-1a: :1 madified form of -15 devi s.- in v. T hzn'c Shawn three frickion xhnzaq 51' 5: ag-h svt. hearing againstthe fienzzwmmw instead of having va -h sci. as smawn in Figs. 1-4. sir-(i ns that various mudificatimas he 222ml: in .11.? ximci-nhsmh zng mc-zhz'znism which I have' shown and described herein, without departing-from my in\cnment with :said shoes, the wedge being integral and Sencircling said friction member, axcompression spring encircling said friction member bearing atone end against said base and at the other end against a follower,

said follower encircling said friction mem- :being integral and encireling saidfriction I her, and 'a releasing spring centrally con- ,tained in said friction member and hearing at its outer end against said wedge.

2. In frictional shock absorbing mechanism, a central friction member having a broad flat base of 'resistance and a plurality of outwardly-radiating arms, said arms having friction faces forming with each other" lower.

rentrant angles, a plurality of friction shoes, each shoe bearing against the friction faces of a plurality of said arms, a wedge in engagement with said shoesdhe wedge member, a compression spring encircling said friction member and hearing at one 'end against said base and at theother end against an intermediate follower, said follower encircling said friction.member, and a releasing spring having a bearing on said friction member at one end and at its other end against said wedge.

3; In frictional shock absorbing mechanism, a follower having integral therewith a longitudinally-extending stem comprising a central friction member cruciform in cross section, a plurality of friction shoes, each seatingin a reentrant angle of the central friction member, a second follower in engagement with said shoes, the said second follower being integral and encircling said friction member, a compression spring-lencircling said friction member and hearing at one end against the said Ifirst follower and at the other end against an intermediate follower said intermediate follower encircling said friction member, and a releasing spring inclosed in the central friction member and engaging said second fol- WI LLIAM BLACKMORE.

Witnesses:

HARRY E. Oan, HUBERT L. SPENCE. 

